Anti-rotation device for a dispenser

Abstract

The application discloses a rotation preventing device for a dispenser, which comprises a pair of connecting rods connected with stationary parts on the dispenser respectively, the connecting rods are symmetrically distributed with respect to the rotation axis of a rotating part on the dispenser; the rotation preventing device further comprises a mounting base, a connecting piece arranged on the mounting base and in the front-back direction, a sliding block arranged on the connecting piece and slidable in the front-back direction, a pair of protrusions arranged on the left and right sides of the sliding block respectively, one end of the connecting rods is hingedly connected with the stationary parts respectively, the other end of the connecting rods is hingedly connected with the pair of protrusions respectively, and the connecting rods are slidable in the left-right direction with respect to the corresponding protrusions; the connecting rods are symmetrically distributed with respect to the axis of the connecting piece; the sliding block is rotatably arranged on the connecting piece with respect to the axis direction of the connecting piece, and the axis of the connecting piece and the rotation axis of the rotating part are perpendicularly intersected on the upper end surface of the rotating part. The rotation preventing device makes the dispenser always in a free working state, thereby prolonging the service life of the dispenser.

Description

Technical Field

[0001] This invention relates to the field of filling technology, and in particular to an anti-rotation device for a dispenser. Background Technology

[0002] When the dispenser of a filling machine is working, problems may arise such as misalignment of the rotation centers of the moving and stationary structures due to factors such as processing and installation, or the distributor's rotation center axis not being perpendicular to the mounting surface due to the distributor's mounting surface not being level, resulting in conical oscillation. Furthermore, the restraint of different degrees of freedom by the anti-rotation device on the stationary part of the dispenser can cause uneven stress between the moving and stationary structures, leading to uneven wear between the internal sealing ring and the central shaft, resulting in leakage. This, in turn, shortens the service life of the dispenser and affects production efficiency.

[0003] Existing distributors can solve the problem of misalignment of the rotation centers of the static and dynamic structures by releasing the constraint on the degree of freedom of the rotation center axis of the static vertical distributor. However, when the distributor exhibits conical oscillation, it cannot achieve displacement or rotation in multiple different degrees of freedom, resulting in uneven force distribution during operation, significantly reducing the distributor's service life and affecting production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-rotation device for a distributor, which enables the distributor to always be in a free working state, thereby extending the service life of the distributor and ensuring production efficiency.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An anti-rotation device for a dispenser includes a pair of links respectively connected to a stationary part on the dispenser, the pair of links being axially symmetrical about the axis of rotation of a rotating part on the dispenser.

[0007] The anti-rotation device further includes a mounting base, a connector disposed on the mounting base and arranged in the front-to-back direction, a slider slidably disposed on the connector in the front-to-back direction, a pair of protrusions respectively disposed on the left and right sides of the slider, one end of a pair of connecting rods respectively hinged to the stationary member, and the other end of the pair of connecting rods respectively hinged to the pair of protrusions, the connecting rods being slidable in the left-to-right direction relative to the corresponding protrusions; the pair of connecting rods are axially symmetrically distributed with respect to the axis of the connector.

[0008] The slider is rotatably mounted on the connector, and the axis of the connector and the axis of rotation of the rotating member intersect perpendicularly at the upper end face of the rotating member.

[0009] Preferably, the connecting member is a mandrel suspended on the mounting base, and the slider is sleeved on the mandrel in the front-rear direction.

[0010] More preferably, the anti-rotation device further comprises a pair of support bases arranged on the mounting base and connected to the front and rear ends of the mandrel respectively.

[0011] More preferably, the slider is cross-shaped, one side of the cross-shaped slider is coaxially sleeved on the mandrel, and the other side of the cross-shaped slider extends out of the mounting base at both ends and is used for connecting a pair of connecting rods.

[0012] More preferably, the slider is suspended above the mounting base.

[0013] Preferably, the connecting rods are coaxial with respect to the rotation axis of the stationary member, and perpendicular to the rotation axis of the rotating member.

[0014] Preferably, the connecting rods are coaxial with respect to the rotation axis of the slider, and perpendicular to the axis of the connecting member.

[0015] Preferably, the connecting rods are hingedly connected to the different sides of the stationary member respectively.

[0016] Preferably, one end of the connecting rod is provided with a first hinge hole, and the connecting rod is sleeved on the convex portion through the first hinge hole.

[0017] Preferably, the other end of the connecting rod is provided with a second hinge hole, and the connecting rod is hingedly connected to the stationary member through the second hinge hole.

[0018] By using the above technical scheme, the anti-rotation device for the dispenser has the following advantages compared with the prior art: the anti-rotation device for the dispenser is provided with a slider which is slidable in the front-rear direction and rotatable around the front-rear direction on the connecting member, and a pair of connecting rods are hingedly connected between the convex portions on the left and right sides of the slider and the stationary member on the dispenser, so that the anti-rotation device only restricts the freedom of the stationary member which needs to be prevented from rotating, and releases the movement of the stationary member in the remaining five degrees of freedom, eliminates the constraint of the remaining degrees of freedom on the stationary member, enables the dispenser to always be in a free working state, slows down the uneven wear inside the dispenser, prolongs the service life of the dispenser, and ensures the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] FIG. 1 is a perspective view of the anti-rotation device according to an embodiment of the present application; Figure 1 FIG. 2 is a front view of the anti-rotation device according to the embodiment of the present application;

[0020] FIG. 3 is a sectional view of the anti-rotation device according to the embodiment of the present application; Figure 2 FIG. 4 is a sectional view of the anti-rotation device according to the embodiment of the present application; Figure 1 FIG. 5 is a front view of the anti-rotation device according to the embodiment of the present application.

[0021] Wherein: 1, distributor; 11, static part; 12, rotating part; 2, connecting rod; 21, first hinged hole; 22, second hinged hole; 3, mounting seat; 4, connecting piece; 5, sliding block; 51, convex part; 6, support seat. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be further described below in combination with specific embodiments and drawings.

[0023] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0024] In the description of the embodiments of the present application, it is to be understood that the terms "length", "inner", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0025] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0026] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0027] In the embodiments of the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. "Under", "below" and "underneath" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0028] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present application. In addition, the embodiments of the present application can refer to reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which does not indicate the relationship between the various embodiments and / or arrangements discussed.

[0029] Referring to Figures 1-2 As shown, the present embodiment provides an anti-rotation device for a dispenser, the dispenser 1 comprises a static part 11 and a rotating part 12 arranged coaxially, in the present embodiment, the static part 11 is a cylinder, the rotating part 12 comprises a rotating shaft rotatably arranged in the cylinder along the axial direction of the rotating shaft, and a flange plate connected to the top of the rotating shaft and located above the cylinder, the axial direction of the rotating part 12 is arranged along the Z direction in Figure 1 .

[0030] The anti-rotation device for the dispenser comprises a mounting seat 3, a connecting piece 4 arranged on the mounting seat 3 along the front-rear direction (i.e. the X direction in Figure 1 ), a sliding block 5 slidably arranged on the connecting piece 4 along the front-rear direction, a pair of protrusions 51 respectively arranged on the left and right sides of the sliding block 5, and a pair of connecting rods 2 respectively hinged on the static part 11 at one end and respectively hinged on the protrusions 51 at the other end. The connecting rod 2 can not only rotate around the corresponding protrusion 51, but also slide along the left-right direction (i.e. the Y direction in Figure 1 .

[0031] In the present embodiment, the pair of connecting rods 2 are symmetrically distributed with respect to the rotation axis of the rotating part 12 of the dispenser 1, and the pair of connecting rods 2 are also symmetrically distributed with respect to the axis of the connecting piece 4. In the initial state, the rotation axis of the rotating part 12 and the axis of the connecting piece 4 are perpendicular to each other and located in the same vertical plane.

[0032] The aforementioned slider 5 is also rotatably mounted on the connector 4 about the axis of rotation of the connector 4. In the initial state, the axis of rotation of the connector 4 and the axis of rotation of the rotating member 12 intersect perpendicularly at the upper end face of the rotating member 12, that is, they intersect at... Figure 2 Point a in the middle.

[0033] See Figure 2 As shown, when stationary part 11 rotates around the X-axis (i.e. line ad), the rotation radius of hinge point b relative to point a is r1 = ab, and the rotation radius of connecting rod 2 relative to hinge point d is r2 = cd. When line ad coincides with the axis of connecting part 4 and r1 = r2, the synchronous rotation of the anti-rotation device and stationary part 11 can be ensured.

[0034] See Figures 1-2 As shown, a pair of connecting rods 2 are respectively hinged to opposite sides of the stationary member 11, which can drive the stationary member 11 to move more stably.

[0035] The rotation axes of a pair of connecting rods 2 relative to the stationary member 11 coincide, and these rotation axes pass perpendicularly to the rotation axis of the rotating member 12. Figure 2 Point b in the diagram; the rotation axes of the pair of connecting rods 2 relative to the slider 5 coincide, and this rotation axis passes perpendicularly through the axis of the connecting piece 4, i.e. Figure 2 Point d in the diagram.

[0036] See Figures 1-2 As shown, one end of the connecting rod 2 is provided with a first hinge hole 21, and the connecting rod 2 is sleeved on the protrusion 51 through the first hinge hole 21; the other end of the connecting rod 2 is provided with a second hinge hole 22, and the connecting rod 2 is hinged to the stationary member 11 through the second hinge hole 22.

[0037] In this embodiment, the connector 4 is a spindle suspended on the mounting base 3. The length of the spindle extends in the front-to-back direction, and the slider 5 is slidably fitted onto the spindle in the front-to-back direction.

[0038] The aforementioned anti-rotation device for the distributor also includes a pair of support seats 6 disposed on the mounting base 3 and respectively connected to the front and rear ends of the spindle. The pair of support seats 6 are used to support the spindle so that it is suspended above the mounting base 3.

[0039] In this embodiment, the slider 5 is cross-shaped, with one side coaxially fitted onto the mandrel, and the other side of the slider 5 extending out of the mounting base 3 at both ends, and used to connect a pair of connecting rods 2. This arrangement avoids interference between the connecting rods 2 and the mounting base 3 when they rotate.

[0040] The slider 5 is also suspended above the mounting base 3. This design prevents interference between the slider 5 and the mounting base 3 when the slider 5 rotates.

[0041] Through the above structure, the stationary part 11 has five degrees of freedom of X, Y, Z, XZ plane and YZ plane, and the distributor 1 can be in a free working state, the internal wear of the distributor 1 is slowed down, the service life of the distributor 1 is prolonged, and the production efficiency is ensured.

[0042] The working process of the embodiment is specifically described as follows:

[0043] When the stationary part 11 needs to move along the X direction, the stationary part 11 moves along the X direction with the connecting rod 2 and the sliding block 5 as a whole relative to the connecting piece 4;

[0044] When the stationary part 11 needs to move along the Y direction, the stationary part 11 moves along the Y direction with the connecting rod 2 as a whole relative to the sliding block 5;

[0045] When the stationary part 11 needs to move along the Z direction, the connecting rod 2 rotates around the stationary part 11 (i.e. point b) while the connecting rod 2 moves along the X direction, and the other end of the connecting rod 2 rotates around the sliding block 5 (i.e. point d) while driving the sliding block 5 to move along the X direction;

[0046] When the stationary part 11 needs to rotate around the X axis in the YZ plane, the stationary part 11 rotates around the X axis (i.e. ad line) with the connecting rod 2 and the sliding block 5 as a whole;

[0047] When the stationary part 11 needs to rotate around the Y axis in the XZ plane, the connecting rod 2 rotates around the stationary part 11 (i.e. point b) while the connecting rod 2 rotates around the sliding block 5 (i.e. point d) and drives the sliding block 5 to move along the X direction.

[0048] The above embodiment is only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. An anti-rotation device for a dispenser, characterized by: The connecting rods are symmetrically distributed relative to the rotation axis of the rotating member of the dispenser. The anti-rotation device further comprises a mounting base, a connecting member arranged on the mounting base and in the front-rear direction, a sliding block slidably arranged on the connecting member in the front-rear direction, a pair of protrusions arranged on the left and right sides of the sliding block respectively, one end of each of the pair of connecting rods is hingedly connected to the stationary member, the other end of each of the pair of connecting rods is hingedly connected to the pair of protrusions, and the connecting rods can slide relative to the corresponding protrusions in the left-right direction. The sliding block is rotatably arranged on the connecting member about the axis of the connecting member, and the axis of the connecting member and the rotation axis of the rotating member are perpendicular and intersect at the upper end surface of the rotating member.

2. An anti-rotation device for a dispenser as defined in claim 1, characterized in that: The connecting member is a mandrel suspended on the mounting base, and the sliding block is slidably sleeved on the mandrel in the front-rear direction.

3. An anti-rotation device for a dispenser as defined in claim 2, characterized in that: The anti-rotation device further comprises a pair of support bases arranged on the mounting base and connected to the front and rear ends of the mandrel respectively.

4. An anti-rotation device for a dispenser as defined in claim 2, characterized in that: The sliding block is cruciform, one edge of the cruciform sliding block is coaxially sleeved on the mandrel, and the other edge of the cruciform sliding block extends out of the mounting base at both ends and is used to connect the pair of connecting rods.

5. An anti-rotation device for a dispenser as defined in claim 2, wherein: The sliding block is suspended above the mounting base.

6. An anti-rotation device for a dispenser as defined in claim 1, wherein: The pair of connecting rods coincide with each other relative to the rotation axis of the stationary member, and pass perpendicularly through the rotation axis of the rotating member.

7. An anti-rotation device for a dispenser as defined in claim 1, wherein: The pair of connecting rods coincide with each other relative to the rotation axis of the sliding block, and pass perpendicularly through the axis of the connecting member.

8. An anti-rotation device for a dispenser as defined in claim 1, wherein: The pair of connecting rods are hingedly connected to different sides of the stationary member respectively.

9. An anti-rotation device for a dispenser as defined in claim 1, wherein: One end of the connecting rod is provided with a first hinge hole, and the connecting rod is sleeved on the protrusion through the first hinge hole.

10. An anti-rotation device for a dispenser as defined in claim 1, wherein: The other end of the connecting rod is provided with a second hinge hole, and the connecting rod is hingedly connected to the stationary member through the second hinge hole.

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